======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '237'
                                          'artist'  'Pet Shop Boys'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "It Doesn't Often Snow At Christmas"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'new wave', 'electronic', 'pop', 'synthpop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo;set-th-christmas'
                                             'bpm'  '126.8'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=153, count=0)
'TBPM' (BPM (beats per minute))                     '126.8'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-we-disco or italo', 'set-th-christmas']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         "It Doesn't Often Snow At Christmas"
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pet Shop Boys'
'TRCK' (Track number/Position in set)               '2'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MP3GAIN_MINMAX'                               '104,189'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'electronic', 'pop', 'synthpop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.53 dB'
'TXXX:replaygain_track_peak'                        '0.527395'

========================== row from database ==========================
                                              'id'  1503185
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Pet Shop Boys/MBZ;#Pet Shop Boys;#Whipple Christmas Gift;#02;#It Doesn_t Often Snow At Christmas.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  237
                                           'genre'  electronic-we-disco or italo;set-th-christmas
                                        'filesize'  3336175
                                           'mtime'  1621697595
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo MBZ;#Pet Boys;#Whipple Gift;#02;#It Doesn_t electronic we disco or italo;set th christmas
                                      'tag_artist'  Pet Shop Boys
                                     'tag_release'  None
                                       'tag_title'  It Doesn't Often Snow At Christmas
                                             'bpm'  126.8
                                    'search_title'  'at':7 'christmas':8 'doesn':2 'doesnt':4 'it':1 'often':5 'snow':6 't':3
                                   'search_artist'  'boys':3 'pet':1 'shop':2
                                  'search_release'  
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 '02':15,18 'boys':10,12 'christmas':30 'disco':3 'doesn':20 'electronic':22 'gift':14,17 'it':16,19 'italo':5,25,27 'mbz':6,8 'or':24 'pet':7,9 'set':26,28 't':21 'th':29 'waves':2 'we':23 'whipple':11,13
                                    'search_combo'  '00disco':15 '00poprockelectronic':12 '02':26,29 'at':7A 'boys':11B,21,23 'christmas':8A,41 'disco':14 'doesn':2A,31 'doesnt':4A 'electronic':33 'gift':25,28 'it':1A,27,30 'italo':16,36,38 'mbz':17,19 'often':5A 'or':35 'pet':9B,18,20 'set':37,39 'shop':10B 'snow':6A 't':3A,32 'th':40 'waves':13 'we':34 'whipple':22,24
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'electronic', 'pop', 'synthpop']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697594.893668  (2021-05-22 17:33:14)
                             'size'  3336175